1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sammy [17]
3 years ago
11

3. Ken mows lawns to earn money on the weekend. He mows 6 lawns evert 4 hours.

Mathematics
1 answer:
Rina8888 [55]3 years ago
4 0

Answer:

m = 1.5h

Step-by-step explanation:

He can mow 1.5 lawns in an hour. So to find the amount of lawns mowed u would have to multiply 1.5 and the amount of hours.

You might be interested in
The diagram shows a square with side length 5cm.
arsen [322]

Answer:

5sqrt2

Step-by-step explanation:

Using the pythagorean theorem, we get 5^2+5^2=c^2. C is the diagonal here. 25+25=c^2, c^2=50. c=sqrt50. Simplifying it, we get the diagonal as 5sqrt2.

8 0
3 years ago
Select the mathematical terms that mean "opposite of."
jok3333 [9.3K]

The <em><u>correct answers</u></em> are:

reciprocal ; negative ; additive inverse ; and multiplicative inverse .

Explanation:

The opposite of a number in is a negative.  The number we can add to a number to get 0, or the opposite of a number as far as addition goes, is its additive inverse.  

The number we can multiply to a number to get 1, or the opposite of a number as far as multiplication goes, is its multiplicative inverse.  It is also called the reciprocal of the number.

7 0
3 years ago
Read 2 more answers
Help me quickly plz!!!! Due tmmmrr!!!
Korolek [52]

Answer:

Step-by-step explanation:

2^{x} x  5^{y} x 7^{z} = 1400

10^{xy} x 7^{z} = 1400

70^{xyz} = 1400

4 0
3 years ago
An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 3.3
anyanavicka [17]

Answer:

n=465 rounded up to the nearest integer

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

\sigma=3.3 represent the population standard deviation

Confidence =0.95 or 95%

Me= 0.3, represent the margion of error

n represent the sample size (variable of interest)

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =0.3 mm and we are interested in order to find the value of n, if we solve n from equation (4) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 95% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.025,0,1)", and we got z_{\alpha/2}=1.960, replacing into formula (b) we got:

n=(\frac{1.960(3.3)}{0.3})^2 =464.8336 \approx 465

So the answer for this case would be n=465 rounded up to the nearest integer

3 0
3 years ago
Your friend has owned a dog for 9 years. This is one year less than twice as long as he has owned a cat. How long has your frien
zheka24 [161]
The answer is 17 i think
3 0
3 years ago
Other questions:
  • If you were to graph 1.14, 1.15, and 0.5. what would you count by on your number line?
    5·1 answer
  • Help me please!!!!!!!!!
    12·1 answer
  • Chef Andy needed to adapt his recipes for his European kitchen staff in Paris. He was​ 1-pound portions of​ entrecote, 2 ounces
    7·1 answer
  • Is F(x)=1/4*(5/2)^x growth or decay
    13·1 answer
  • Help pleaseeeeeeeeeeeeeeeeeee
    15·2 answers
  • Plz help asap thank you​
    9·1 answer
  • If A={1,2,3}, find the relation in A×S satisfying the condition x+y&lt;5.​
    9·1 answer
  • What is angle A sum 1 plz I need this quick
    13·1 answer
  • Find the area. Round to the nearest tenth.
    15·1 answer
  • The ball followed a path modelled by the equation h = −0.001! + 0.5 + 2.5 where h is the height of the ball in feet and is the h
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!